List of top Chemistry Questions

Which of the following configuration is correct for iron?
Purification of aluminium by electrolytic refining is called
Natural rubber is a polymer of
The Minamata disease in Japan was caused through the pollution of water by
Terylene is a condensation polymer of ethylene glycol and
Who modified Bohr's theory by introducing elliptical orbits for electron path?
The specific conductance of a $N / 10 \,KCl$ at $25^{\circ} C$ is $0.0112\, ohm ^{-1} cm ^{-1} .$ The resistance of cell containing solution at the same temperature was found to be $55\, ohm$. The cell constant will be
Cassiterite is an ore of
The oxyacid of phosphorus in which phosphorushas the lowest oxidation state is
The alum used for purifying water is
For the chemical reaction,$3 X ( g) + Y ( g) \rightleftharpoons \, X_3 \, Y $ ( g) the amount of $X_3 Y$ at equilibrium is affected by
Which of the following metals is present in brass, bronze and german-silver?
How many g of dibasic acid (mol. wt. 200) should be present in 100 mL of the aqueous solution to give 0.1 normality ?
Bell-metal is an alloy of
Aldol condensation will not take place in
At $25^\circ $C and 730 mm pressure, 380 mL of dry oxygen was collected. If the temperature is constant, what volume will the oxygen occupy at 760 mm pressure?
In Friedal-Craft's alkylation besides $AlCl_3$ the other reactants are
The solubility of a saturated solution of calcium fluoride is $2 \times 10^{-4}$ moles per litre. Its solubility product is
The specific heat of a metal is $0.16.$ Its approximate atomic weight would be
Solder is an alloy of:
In the dichromate dianion
Principal, azimuthal and magnetic quantum numbers are respectively related to
The radii of $F , F ^{-}, O$ and $O ^{-2}$ are in the order of
Which of the following is the sweetest sugar?
The correct statement regarding defects in solids is